Shuttle.



E. H. SAWYER.

SHUTTLE.

APPLICATION FILED DEG. 12,1907. 932, 1 80. Patented Aug. 24, 1909.

A i l M znesses [n ven for Hf] 736mm. El /Sawyer f0 rn 6y UNITED STATESPATENT SPEECH EDMUND H, SAWYEB, OF PAWTUGKE T, RHODE ISLAND, ASSIG-NORTO BLACKSTONE VIEBBING (10.,

A CORPORATION OF RHODE ISLAND.

SHUTTLE Specification of Letters Patent.

Application filed December 12, 1907. Serial No. 406,132.

To all whom it may concern:

Be it known that I, EDMUND H. SAWYER, a citizen of the United States,residing at Pawtucket, in the county of Providence and State of RhodeIsland, have invented certain new and useful Improvements in Shuttles,of which the following is a specification.

My invention relates to that class of opentopped shuttles having threadreceiving chambers or recesses and central spindles which hold thequills or bobbins on which the cops or masses of thread are wound, andthe invention has for its object to provide a simple device for thisclass of shuttles which, in addition to its function as a ten siondevice, will also serve to retain the cop or mass of thread supported onthe spindle within the shuttle.

I have found in practice, that the quill with the thread thereon, isliable to be raised out of the shuttle, on the spindle in the shuttle,as the thread is unwound from the quill in the operation of the loom,and therefore it is desirable to provide means for holding the quillwithin the shuttle body and in proper position on the spindle in theshuttle, without interfering with the free rotation of the quill on saidspindle.

In my improvements 1 make the tension device for the thread wound on thequill in such a way, that the pivotal arm thereof will extend over theupper edge of the thread, and act as a retaining device to hold thequill with the thread thereon on the spindle and within the shuttle, andat the same time act as a tension device for the thread.

Referring to the drawing :F igure 1 is a plan view of a shuttle for anarrow ware loom, embodying my improvements, and having a quill thereinwith the thread wound thereon. Fig. 2 is a section, on line 2, 2, Fig.1, looking in the direction of arrow a, same figure.

In the accompanying drawing, the shuttle l is preferably of generalsemi-circular shape, as shown, having a longitudinal projection 1 uponits underside, with inclined or slanting edges, and having a centralrecessed part 1 to receive the quill 2 and thread 2 wound thereon. Thequill 2 loosely fits upon a spindle 3, which extends upwardly from thecentral portion of the recessed part 1 and is secured to the shuttle.The spindle 3 is preferably shorter than the quill 2, as shown by brokenlines in Fig. 2.

The tension means for the thread 2 on the quill 2, consists preferablyof an arm at of wire, bent at one end, and loosely attached to the bodyof the shuttle at one side of the recess 1, to have a swinging orpivotal movement, with its vertically extending part 4, in this instanceencircled by a helically coiled torsion spring 5, which acts toyieldingly move inwardly the tension arm 4, and cause its free end,which in this instance has a downwardly extending part, made in loopshape, as shown at 4 in Fig. 2, to extend upon and bear against theouter surface or periphery of the thread 2. The arm or lever 4: extendsover the upper edge of the thread 2, and has an offset 4 therein,leading to the end 42, which acts as a holding or retaining device, tohold the quill 2 with the thread 2 thereon, on the spindle 3, and withinthe shuttle body. As the shuttle is operated in the loom, the thread 2is drawn off from the spool 2 through the eye 1 of the shuttle, in theusual way, and the arm 4 acts as tension device for the thread, torestrain the rotation thereof, and the offset 4 on said arm 4:, acts tohold the quill 2 with the thread 2 thereon down within the shuttle, andto retain it in position on the spindle 8.

By referring to the drawings it will be seen that the thread deliveryeye 1 is on the opposite side of the cop or mass of thread 2 from theloop 4, so that as the thread is drawn off through the said loop to thesaid delivery eye, in engagement with one of the bars of said loop, thedraft of the thread will have a tendency to hold the said loop againstthe side of the body of thread and thus tend to increase, rather thanlessen, the tension, as also to retain the ofl-set or shoulder 4 inengagement with the upper end of the said cop or mass of thread, therebyreliably preventin the cop of thread from rising in the shutt e.

Patented Aug. 24, 1909.

It will be understood that the details of which the thread is Wound, ofa springpressed tension arm arranged to bear against the side of a copor mass of thread on said spindle, said arm having an offset part orshoulder extending over the upper edge of the mass of thread, to holdthe quill, with the thread therein, Within the shuttle.

2. The combination with a shuttle having a thread receiving recess, athread delivery eye, and a central spindle, of a pivoted spring-pressedtension arm having a loop arranged to bear against the side of a cop ormass of thread mounted on said spindle and having also an off-set orshoulder adapted to engage the end of the cop or mass of thread andthereby prevent it from being raised on said spindle.

3. The combination with a shuttle having of a springwhieh is oppositesaid delivery eye, said arm 25 having also an ollset or shoulder adaptedto engage the upper end of the cop or mass of. thread and therebyprevent it from being raised on said spindle.

EDMUND H. SAWYER.

Vitnesses:

M. SHIELDS, F. I. HUGHES.

